Citation: LIU Ying, LU Xu-Yun, CHE Zhi-Wen, WANG Wei, BAO Jian-Chun. Synthesis and Electrocatalytic Bifunctionality for Hydrogen and Oxygen Evolution of Platelet-like Ru-Doped Ni₂P Nanocatalyst[J]. Chinese Journal of Inorganic Chemistry, ;2020, 36(6): 1085-1092. doi: 10.11862/CJIC.2020.125 shu

Synthesis and Electrocatalytic Bifunctionality for Hydrogen and Oxygen Evolution of Platelet-like Ru-Doped Ni₂P Nanocatalyst

College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China

Corresponding author: BAO Jian-Chun, baojianchun@njnu.edu.cn
Received Date: 3 March 2020
Revised Date: 9 April 2020

Figures(7)

This work reports a platelet-like Ru-doped Ni₂P nanosheet catalyst which was prepared by a simple one-pot method. The introduction of Ru not only significantly enhances the electron transport property of the catalyst, but also contributes to platelet-like morphology which causes a large number of step and dislocation defects on the catalyst surface; in addition, electrochemical tests reveal that both Ru and Ni₂P are effective active components for electrocatalysis. These factors jointly enhance the electrocatalytic hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) performances of the Ru-doped Ni₂P catalyst. For HER, the Ru-doped Ni₂P catalyst shows superior onset potential (35 mV), Tafel slope (34 mV·dec^-1) and long-term cycling stability (3 000 cycles), superior than that of the individual Ni₂P, Ru and close to the commercial 20%Pt/C catalyst. For OER, the Ru-doped Ni₂P catalyst displays a small onset potential of 1.54 V and overpotential (η₁₀) of 0.49 V, superior to the Ni₂P, Ru, 20%Pt/C, and close to the commercial IrO₂ catalyst.
- hydrogen,
- oxygen,
- doping,
- Ru,
- Ni₂P,
- electrochemistry
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Synthesis and Electrocatalytic Bifunctionality for Hydrogen and Oxygen Evolution of Platelet-like Ru-Doped Ni2P Nanocatalyst

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Synthesis and Electrocatalytic Bifunctionality for Hydrogen and Oxygen Evolution of Platelet-like Ru-Doped Ni₂P Nanocatalyst